Car-underframe.



GAR UNDERFRAME.

APPLICATION FILED MAY 21, 1910 "Patented 00h 2 SHEETS-SHEET 1.

Af E. OSTRANDER.

CAR UNDERFRAMB.

APPLICATION FILED MAY 21, 1910.

Patented 00+. 29, 1912.

2 SHEETS-SHEET 2.

000000 .dqd o t m O O O O O O 'Tall @chomi may] concern nir sierras ALLEN E. OSTRANDER, 0F RIDGEWOOD, NEW JERSEY, ASSIGNOR TO AMERICAN CAR Nn roUN'DaY JERSEY. l.

Specification of Letters Eatent.

COMPANY, OF ST. LOUIS, MISSOURI, A CORPORATIONYOF NEW' 'Patented Get. 29, 1912.

.Application led May 21, 1910. Serial No. 562,705.

Be it lrnown'thatl, ALLEN EOSTRANDER, resldln'g at. Ridgewood, New Jersey, and being a citizenof the United States, have invented' 'certain new and useful Improvements in Car-Underfr'ames, of which the following is a full, clear, and exact description, such as will venable others skilled in the art' to .which it appertains to make and to use the sa1ne,f1"eference being had lto the accompanying' drawings, Y, which illustrate the preferreduformrof the invention, though it is to be understood 'that the invention is f not limited to the exact details of construction shown and described, as it is obvious that various modifications 'thereof will occur to presonsl skilled inV the art.

In said drawingsz-Figure l is aplan view ofA the end portion of iny improved under-frame. Fig. 2 isa central longitudinnal sectional View through the underframe and a portion of the. car" body. Fig.` 3

shows-at'tlie right hand side-'-a transverse section taken` relatively just back ofthe bolster, and at vthe left handside a transverse section .between one of Athe"principal,crossbearers and thebody bolster, looking in the' direction ofthe cross-bearer. Fig 4shows a fragmental section of the post illustrating aV method *of bracing'the same for th'e'construction shown and a manner of utilizing a tie-rod within the walls of the car to reinforce the construction.

f' 'of thef car in "the 'manner and f dinary' width providedy inipresserl side sill de ab constructionsy and are turned-inwardly asy best shown inthe plan view. 'lho side sillsY .like the center-sills, are of slightly increasing ptll between the holsters, though prefer-A y not as deep as are the center sills. vThe end sills are preferably of rolled channel shape. f 1

Extending continuously throughout the' length of the side sills k2 in proximity to the bottom edges thereof are inturned angles 4, the vertical legs'of which are connected by .suitable rivet connections With the vertical webs of the side -sills and rest against the inner faces of `the Webs of said sills, the

horizontal legs of said angles 4 extending under the holsters 5 and between said bolste'rs 5 and the inturned langeti of the jacking casting commonly applied to the ends of body bolsters.

A'secure the floor and sheathing boards in po- The top flange of the side sill is made extremelyY wideand like the angle 4 projects inwardly so as to provide first a plain surface against which the nailingstrip 8 may rest and-by reason of. the excessive width of the top flange to provide means to pre- ,vent'torsional disturbance of the superstructure vcarried by. the underframe, the wide top flange of the side sill'being attached to, and overlapping, A the body holsters and principal' cross bearers ofthe underframe, thereby permitting a .maximum number of rivets through said top llange for connecting said top liange with said bolster and cross bearers and providing a continuous the car of sulicient area transversely of the car, in said top flange, for such rigid connection of the parts enumerated as is required vin high capacity box cars.

v The ,mere widening of one of the flangesr of the side sills is not the primary ohJect of the invention4 as I am aware that a side 'sill has heretofore been produced in which one ,of theiianges was Wider thanthe other flange, increasin in width toward the end of the car and emg of less width nearer the middlabut that does not respondio the purpose of the present invent-ion owing to lthe' Vfact that such prior construction provided n sill which was weakest laterallyl atthe middle of the length ofthe c'ar where the greatest lateral strength is recpiired,v ln

`member extending throughout the length of my construction,` the topl fianges 3 of the side sills are of substantiall uniform width from end to end and in ad ition to the connection of said top flanges with the bolsters and cross bearers the end portions of said flanges overlap the end sill plates 10, as shown in plan view thereby providin .at each corner of the underframe ',ust b'ac of the outer end portion of the en posed' plates 3 and l0, to which are connected the diagonal braces 11- preferably of channel form', upon which rest the wood nailing strips 12, which nailin strips are of less length than said diagona braces 11 which extend rearwardly below and are secured'by rivet connection with the top bolster c'over plates 13.'. Resting on said bolster cover plates and projecting over the forward edges thereof are angle brackets 14 which dip downwardly and outwardly from said bolster cover plates, thereby roviding steps upon which rest the longitu lnally extending nailing strips 15, which latter na1ling strips extend under the end sill platform plates 10 as shown in the plan view.

The draft sills 16 and center sills: are connected in any suitable manner as at 17 and 18. Y

- Extending throughoii't the-lengtli of the underfra'me between,k the. sill plat-form plates l0 is a sill cover plate 23 o'ver which passes the top bolster cover plate 13, suitable rivets passing through the plate 21, the outstandin flanges of the center sills and ,draft sllls.

n addition to thesill cover late 28 there is provided another sill cover p ate 2.4 which terminates short of the holsters, sald cover plate 24 extending past the transversely extending cross ties 25 which lattei'are preferably of rolled angles.v

As will be noted in the plan View, the brackets 14 are wider at their forward ends than at their rear ends so as to lprovide sufficient clearence for the rivets which conneet the diagonalbraces 12 with the bolster cover plates 13. l

The side framing comprises the usual posts and dia onal braces and said posts are stiflened by c annels 30 which are substantially co-extensive with the said posts, while the tie rods 31'. arelplaced in close proximity to said channels 30 and 'bv reason of their position serve' to hold said vertically disposed channels in positlon.

Thus it will be observed that I provide composite center and side sllls, deepest Yat their middle portions proportioned to carry' a maximum load, at thc same time the parts are so proportioned, and assembled as to provide maximum resistance Y`to 'transverse ending` in service. en.

1. In a car underframe, composite side sills having relatively wide Vtop flanges and relatively narrow bottom flanges,y the said sills super- Van end cover plate connected with the center and side sills.

2. In a car `under-frame, composite side sills having relatively wide top fianges and relatively narrow bottom flanges, the said' flanges being of uniform width throughout their lengthV and adapted to project inwardly to embrace. the ends of the cross bearers, the web connecting the f ad flanges incl-eas ing in depth between the bolsters, in combination with center sill coistruction increasing in depth between the bolsters and with end cover plates connected with the said center sills and said side sills.

3. In a car underframe, com yosite side sills having relatively wide top anges and relatively narrow/bottom flanges the said fianges being of uniform width throughout their length and ada ted to project inwardly to embrace the en s of the cross bearers, the web connecting the said flanges increasing in depth between the bolsters, in combination with center sill construction increasing in depth between the holsters, cross members uniting the center and side sills and comprising diaphragms increasing in depth from the side sill construction to the center sills and with `end cover plates connected l with the center, and side sills.

.4. In a car underframe, a composite side sill having relatively wide top flanges and relatively narrow bottom flanges, the said flanges being of'uniform width throughout their length and adapted to project inwardly to embrace the ends of the cross bearers, the web connectingithe said flanges increasing in depth between the bolstcrs, in combination with center sill construction having outwardly extending flanges,the web connecting the said flanges increasing in depth between the holsters, cross bearers adapted to be embraced between the inwardly projecting flanges of the side sills and the out.- wardly extending flanges oi" the center sill construction, the web of said cross' bearers increasing' in depth from thev side sills to the center sill construction, end .frame cover plates connected with {luf-center sill'con.

struction and the side sills and diagonal braces extending from the juncture of' the side sills and end cover plate to the juncture of the holsters and the center sill consten@ tion.

5. In a car underframe. a composite side Y sill having relatively wide top anfrcs and What I claim is: I

"relatively narrow bottom flanges. the said flanges being of uniform width throughout their length and adapted topioject inwardly ,to embrace thc ends of the cross bearers, the.

. tion with center sill construction having outwardly extending flanges, the lweb connectving the said flanges 1ncreasintt3;` in depth between the holsters, an inwardly extending flange on the center sills, cross bearers adapted to be embraced between the inwardly projecting flanges of the side sills and the outwardly extending flanges of the center sill construction, the1 web of said cross bearers increasing in depth from the side sills to the center sill construction, a series of cross ties Copies of this patent may be obtained for uniting said center sill construction and the cross bearers, an end frame cover plate connected with the center sill construction and the sidesills and diagonal braces extending from the juncture of the side sills and end cover plate to the juncture of the holsters and the center sill construction.

In witnessl whereof I have hereunto set my hand in the presence of two witnesses. ALLEN E. OSTRANDER. vWitnesses:

F. H. GIBBS, lC. A. HUMPHmns.v l

ve cents each, by addressing the Commissioner of'ratents, Washington, D. C. 

